Using The Port Triggers Option - Ubee DVW326 User Manual

Ubee Interactive
6.6

Using the Port Triggers Option

Port Triggers define dynamic triggers to specific devices on the LAN. This allows special
applications that require specific port numbers with bi-directional traffic to function
properly. Applications such as video conferencing, voice, gaming, and some messaging
program features may require these special settings.
Some services use a dedicated range of ports on the client side and a dedicated range of
ports on the server side. The difference between port forwarding and triggering is:
 Port forwarding sets a rule to send a service to a single LAN IP address.
 Port triggering defines two kinds of ports: trigger port and target port. The trigger
port sends a service request from a LAN host to a specific destination port number.
The port the LAN host is required to listen to by the application is called the target
port. The server returns responses to these ports.
For example:
1. John requests a file from the Real Audio server (port 7070). Port 7070 is a "trigger"
port and causes the device to record John's computer IP address. The DVW326
associates John's computer IP address with the "target" port range of 6970-7170.
2. The Real Audio server responds to a port number ranging between 6970-7170.
3. The DVW326 forwards the traffic to John's computer IP address.
4. Only John can connect to the Real Audio server until the connection is closed or
expires.
Steps
To set up port triggering:
1. Click Advanced from the main menu.
2. Click Port Triggers from the left side menu.
3. Click Create.
Ubee DVW326 Advanced Wireless Voice Gateway Subscriber User Guide • March 2014

Using the Port Triggers Option

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